Universal joint.



No. 678,093. Patented July 9, |901.

F. E. BCRSELSKI.

UNIVERSAL VJOINT.

(Application led Mur. 23, 1901.)

(No Model.)

To @ZZ whom it may concern:

UNITED STATES PATENT OEEIcE.

FRANK E. BOCORSELSKI, OF SPRINGFIELD, MASSACHUSETTS.

UNIVERSAL JOINT.

SPECIFICATION forming part of Letters Patent No. 678,093, oiateci .Iuiy 9, 1901.

Application filed March 2S, 1901.

Beit known that I, FRANK E. BocoRsELsKI, a citizen of the United States of America, residing at Springfield, in the county of Hampden and State of Massachusetts, haveinve'nted a certain new and useful Improvement in Universal Joints, of which the following is a specification, reference being had to the accompanying drawings, wherein- Figure l is a view of a universal joint embodying saidimprovement. Fig. 2 is a view of the same joint largely in central vertical section. Fig. 3 is a view of the same joint which is shown in Fig. 2in cross-section on the plane denoted by the dotted line @o 9c. Fig. 4 is a View of one shaft and its bifurcations-a view in longitudinal section on the plane at right angles to that of Fig. 2. Itis a view of parts only partially assembled, having for its object to show how the block andthe partial pivot-shafts are gotten into place. Fig. 5 is a view of the complete joint, largely in central longitudinal section, on a plane at right angles to that of Fig. 2. Fig. 6 is a View of a modificationa view similar to Fig. 5.

The object of the improvement is the production of what is generally called a universal joint, having features of novelty and advantage whereby one rotary shaft drives another which is not in-the same alinement. The two shafts are bifurcated at the ends which are connected by the joints;

In the accompanying drawings, Figs. l to 5, inclusive, the letter a denotes the bifurca tions of one shaft, and the letter b denotes the bifurcations of the 'other shaft.

The letter c denotes what may be termed an intermediate block, which may Well be exteriorly of the shape which is shown in the drawings; but that shape is not essential, for within reasonable limits it may be varied at pleasure. This intermediate block is piercedV by shaft-bearings, which are atvright angles to each other for the admission and passage of the pivot-shafts soonl to be described.

The letter d denotes a pivot-shaft by which the intermediate block is pivotallyattached to the bifurcations a. l In the,l construction which is shown in the drawings one screwthreaded end of this shaft takes into a corre sponding interior screw in one of the forks a, and the other end is cross-slotted for actuation by a screw-driver or the like.

Theletters e and e denote two partial pivot- Serial No. 52,527. (No model.)

shafts by which the block c is pivotally attached to the bifurcations b. When the assembling of the parts is complete, these partial pivot-shafts are kept apart and in their sure may first be applied endwise to one of 4 the partial pivot-shafts, so as to force the other into its place. When the shaft CZ is fastened in place, all the parts are properly locked together. When the parts are assembled, there is an open space between the inner ends of the two partial pivot-shafts, which serves as an oil-well f, and oil may have admission thereto through an oi1-duct f', of

.which there may be onein each of the partial The whole device is one of g pivot-shafts. great simplicity and, great strength, having ample and sufficient means for receiving and retaining the oil used for lubrication. Itis a mechanism that is readily assembled and readily taken apart. Theprincipal parts of the device are contained within the inclosure ofthe two sets of bifurcations andthe whole comes within a certain circumferential diameter. l

In Fig; 6 is shown a modification. Here the pivot-,shaft d is not screw-threaded, but is secured in place by the pin d', which can be put in and taken out by setting parts a and b at right angles to each other.v

I claim as my improvement- 1. In combination,' the two, bifurcated shafts, the intermediate block pierced by shaft-bearings at right va'ngles'to each other, the partial' pivot-shafts, and the pivot-shaft arranged between the two partial pivot-shafts, all substantially as described and for the purposes set forth.

2. In combination, the two., bifu'rcate'd shafts, the intermediate block pierced by shaft-bearings, the pivot-shaft, andthe `par-` tial pivot-shafts pierced, one or both, by an oil-duct, all substantially as described and for the purposes set. forth. i

FRANK E. BOCORSELSKI.

Witnesses: l

F. M. BRAGG, C. F. KILGOEE.

Ido' 

